What would it really cost?
The Grade A option is 2 x 36 F35C airgroups.
£9 Billion for both carriers plus conversion to cat and trap (much already paid for)
72 plus OCU of 8 plus 10 attrition reserves so 90 F35C? The costs? who knows but supposedly they are more expensive at the start so £130m each for the first 20? £100m each for the next 70 so £9.6 billion?? Joint RN/RAF ownership and crewing.
We already have AEW Sea kings so no more needed.
Each ship based on what we got from the Invincible class gives 140 sea days a year. There is no need to base more than a dozen on board at any time to keep the training schedule for take offs and landings up, run yearly or bi-yearly exercises where the surge of 36 per ship is achieved. We will not be in a position to forward deploy a ship based on a class of 2 , nor the need unlike the USN. They are kept as the big stick, waved now and then.
So for 80 days of the year we have no carrier at sea, all F35C's are training, QRA etc. For the rest of the year, one carrier may be at sea, joint training ops, good will tours with the occasional exercise thrown in, so 60 F35C's available for training, maintenance, overseas deployments etc.
If there is a conflict that HNS alone can't manage, we work up the ready carrier within a few weeks to full fat configuration, 36 F35C's would be no mean force, a couple of T45, Type 26's and a couple of Astutes, thats it, that UK PLC maxed out. But not bad?
So 107 Typhoon, 90 F35C in total, plenty to share around, not many needed at sea at any one time. All for the small sum of £18 billion of loose change, spent over the next 15-20 years, is that really too much for the 5 th biggest economy in the world?